JP5781454B2 - Display control device for construction machinery - Google Patents

Description

  The present invention relates to a display control device for a construction machine.

  2. Description of the Related Art Conventionally, a working vehicle including a console switch panel on which various switches and the like are arranged is known (for example, Patent Document 1).

Utility model registration No. 2568497

  However, if the failed switches cannot be repaired immediately, it is necessary to stop the work vehicle, which has a problem of affecting the work process and the like. In particular, large working vehicles and working machines for mining are operated day and night in principle, and interruption of work brings about a significant increase in cost.

The display control device for a construction machine according to the first aspect of the present invention includes a display control unit that controls display contents of a screen including various types of information, and a plurality of operations that receive a plurality of types of first operation inputs on the screen. A first operation member group each having a member and a second operation input for performing a substitute setting for substituting the first operation input by one operation member of the plurality of operation members with another operation member; An operation member group, a third operation member that accepts a third operation input for starting the substitute setting, and a substitute setting screen for making a substitute setting according to the third operation input are displayed on the substitute setting screen. Setting means for determining the contents of the substitute setting in accordance with the second operation input made, and the contents of the substitute setting in which the first operation input received by the first operation member group is determined by the setting means. When matches The display control means, and controlling the display of the screen according to the content of the alternative setting.
The invention according to claim 2 is the display control device for the construction machine according to claim 1, wherein the number of days until the operation input by the third operation member is accepted after the content of the substitute setting is determined by the setting means. The display control means does not display the substitute setting screen when a predetermined day or more has elapsed.
According to a third aspect of the present invention, in the construction machine display control device according to the first or second aspect of the present invention, the display control device further includes a canceling unit that cancels the content of the substitute setting set by the setting unit.
According to a fourth aspect of the present invention, in the display control device for a construction machine according to any one of the first to third aspects, the setting means is configured to set the contents of a plurality of types of substitute settings according to the second operation input. The content of one of the substitute settings is determined.

  According to the present invention, the substitute setting for substituting the operation instruction of one operation member in the first operation member group with another operation member is performed, and the display of the screen is controlled according to the content of the substitute setting. Can do.

1 is an external side view of a hydraulic excavator according to an embodiment of the present invention. Interior plan view of cab Plan view explaining set value input section Plan view for explaining the display state switching instruction section Block diagram for explaining the main configuration of the display control device The figure explaining an example of the screen displayed on a display monitor The figure explaining an example of the screen displayed on a display monitor The figure which shows a mode that the screen displayed on a display monitor changes according to an operator's operation. Figure showing a display example of the substitute setting screen The figure explaining a substitute setting table Figure showing a display example of the repair status confirmation screen Flowchart explaining processing of display control device Flowchart explaining processing of display control device Flowchart explaining processing of display control device Flowchart explaining processing of display control device

  With reference to the drawings, a large hydraulic excavator will be described as an example of a construction machine according to an embodiment. FIG. 1 is an external side view of the excavator 10. The excavator 10 includes a traveling body 1 and a revolving body 2 provided on the traveling body 1 so as to be able to swivel. The revolving unit 2 includes an operator cab 3 provided at the top of the revolving unit 2, an engine room 4 provided at the rear of the revolving unit 2, and an articulated front device 6 attached in front of the revolving unit 2. And have. The front device 6 includes a boom 11, an arm 12, and a bucket 13.

  The traveling body 1 includes a pair of left and right crawler belts 1a, and the crawler belts 1a are driven by a travel motor (not shown). The turning body 2 is turned with respect to the traveling body 1 by a turning motor (not shown) provided at the center thereof. The boom 11, the arm 12, and the bucket 13 are rotated by the expansion and contraction of the boom cylinder 14, the arm cylinder 15, and the bucket cylinder 16, respectively. These motors and cylinders are driven by hydraulic pressure from a hydraulic pump (not shown) provided in the engine chamber 4.

  The interior of the cab 3 will be described with reference to the plan view of FIG. In FIG. 2, the upper part of the drawing corresponds to the front of the excavator 10. The driver's cab 3 is provided with a driver's seat 31, work operation levers 32 a and 32 b positioned on the front left and right of the driver's seat 31, and a display control device 33. The display control device 33 includes a display monitor 331, a set value input operation member 332, a substitute setting screen switching instruction operation member 333, and a display state switching instruction operation member 334. Characters and images are displayed on the display monitor 331 according to the control of the controller described later. The set value input operation member 332 includes buttons, switches, and the like that are operated by the operator when inputting set values on a substitute setting screen described later. The substitute screen setting switching instruction operation member 333 includes buttons, switches, and the like that are operated by the operator when switching the display on the display monitor 331 to the substitute setting screen, as will be described later. The display state switching instruction operation member 334 includes buttons, switches, and the like that are operated by the operator when switching display contents displayed on the display monitor 331. The set value input operation member 332, the substitute screen setting switching instruction operation member 333, and the display state switching instruction operation member 334 output an operation signal corresponding to the operation by the operator to the controller.

  FIG. 3 is a plan view for explaining various buttons constituting the set value input operation member 332. The set value input operation member 332 includes a “↑” key 41, a “↓” key 42, a “←” key 43, a “→” key 44, a “◯” key 45, and “Done” as a set value input button group 40. A key 46 is provided. When selecting various input values, the operator selects one of the “↑” key 41, “↓” key 42, “←” key 43, “→” key 44, and “◯” key 45. Operate and operate the “Done” key 46 to determine the input value selected by the selection operation. This operation is referred to as an input value determination operation in this specification.

  FIG. 4 is a plan view for explaining various buttons constituting the display state switching instruction operation member 334. The display state switching instruction operation member 334 includes a “selection ○” key 51, “cancel x” key 52, “selection ↑” key 53, “selection ↓” key 54, and “selection ←” key as the display switching button group 50. 55 and a “selection →” key 56 are provided. When the operator selects various display state switching settings, the operator selects one of the “selection ↑” key 53, “selection ↓” key 54, “selection ←” key 55, and “selection →” key 56. The “OK” key 51 is operated to determine the setting selected by the selection operation. In this specification, this operation is called a determination operation. When canceling the setting determined by the switching determination operation and returning the display state of the display monitor 331 to the previous display, the operator operates the “Cancel ×” key 52. In this specification, this operation is called a stop operation.

  The control system of the display control device 33 will be described in detail with reference to the block diagram of FIG. In FIG. 5, the same components as those shown in FIG. 2 are given the same reference numerals. As shown in FIG. 5, the display control device 33 includes a display monitor 331, a set value input operation member 332, a substitute setting screen switching instruction operation member 333, a display state switching instruction operation member 334, and a controller 338. ing.

  The controller 338 includes peripheral circuits such as a CPU and a ROM (not shown), and performs various calculations based on the input operation signal to control the display on the display monitor 331. In addition, the controller 338 includes a screen switching unit 335, an input value determination unit 336, and a storage unit 337 as functions. The screen switching unit 335 switches display contents displayed on the display monitor 331 in accordance with an operation signal input from the display state switching instruction operation member 334. The input value determination unit 336 determines the input value input by the operator according to the operation signal input from the set value input operation member 332 or the display state switching instruction operation member 334. The storage unit 337 is a non-volatile storage medium for storing a failure occurrence date and substitution setting table data described later.

  The display control device 33 according to the present embodiment is configured such that when one button of the display state switching instruction member 334 breaks down, another button can be set as a substitute so that an operation performed with the one button can be performed. Yes. In other words, when a failure occurs in any of the buttons of the display switching button group 50, the display control device 33 is assigned to the display monitor 331 by assigning an operation corresponding to the failed button to another non-failed button. Continue the screen display switching process. In the following description, a case where no failure has occurred in the display switching button group 50 and a case where a failure has occurred will be described separately.

-When no failure has occurred-
A display state switching process of the display monitor 331 by the display control device 33 and an example of a screen displayed on the display monitor 331 when no failure has occurred in the display switching button group 50 will be described.
6 and 7 are diagrams showing various screens displayed on the display monitor 331. FIG. FIG. 6A shows a work screen D1. For example, a speed meter, a tachometer, a fuel remaining amount meter, and various lamps are displayed on the work screen D1 as various types of information. In addition, a guide region R1 for guiding the display state switching operation is displayed at the bottom of the work screen D1 displayed on the display monitor 311. As shown in FIG. 6A, “◯ menu” is displayed in the guide area R1 when the work screen D1 is displayed. The “○ menu” is displayed on the menu screen for performing various settings from the work screen D1 by performing a determination operation using the “OK” key 51 included in the display state switching instruction unit 334. It shows that it switches.

  FIG. 6B shows an example of the menu screen D2. As shown in FIG. 6B, on the menu screen D2, for example, “various settings”, “machine information”, and “clock” are displayed as items L1 to L3 that can be set by the operator. Further, when the menu screen D2 is displayed on the display monitor 331, “↑ ↓ selection”, “◯ OK”, and “× Return” are displayed in the guide region R2. In other words, the operator can select a desired item among the above three settable items L1 to L3 by operating the “selection ↑” key 53 or the “selection ↓” key 54.

  Items selected in accordance with the operation of the “selection ↑” key 53 or the “selection ↓” key 54 by the operator are displayed with the background and characters reversed in black and white (for example, the characters are white and the background is black). In the example shown in FIG. 6B, the state where the “machine information” of the item L2 is selected by the operator is shown. When the operator operates the “selection ↑” key 53 in the state shown in FIG. 6B, “various settings” of the item L1 can be selected. In this case, the background and characters of “various settings” of the item L1 are displayed in black and white inversion, and the backgrounds and characters of the other items L2 and L3 are normally displayed (for example, the characters are black and the background is white). When the operator operates the “selection ↓” key 54 in the state shown in FIG. 6B, the item “clock” of the item L3 can be selected. In this case, the background and characters of the “clock” of the item L3 are displayed in a black and white judgment, and the backgrounds and characters of the other items L1 and L2 are normally displayed. As described above, when the operator operates the “selection ↑” key 53 or the “selection ↓” key 54 to select a desired item and performs a determination operation using the “decision ○” key 51, the display monitor 331 is selected. The setting screen corresponding to the selected item is displayed. If the operator performs a cancel operation with the “Cancel ×” key 52 while the menu screen D2 is displayed, the display on the display monitor 331 is switched to the work screen D1.

  FIG. 7A shows an example of a display displayed on the display monitor 331 as a setting screen. FIG. 7A shows an example of a clock setting screen D3 that is switched by selecting “clock” of the item L3 by the operator on the menu screen D2 shown in FIG. 6B. The current “year, month, day, hour, minute, second” is displayed on the clock setting screen D3. Further, when the clock setting screen D3 is displayed, “◯ adjustment” and “× return” are displayed in the guide region R3. The display of “○ adjustment” is switched to the clock adjustment screen for adjusting the current date and time by operating the “OK” key 51 included in the display state switching instruction unit 334. Indicates. The display of “X RETURN” indicates that the display state is switched from the clock setting screen D3 to the menu screen D2 by operating the “CANCEL ×” key 52 included in the display state switching instruction unit 334.

  FIG. 7B shows an example of the clock adjustment screen D4. As shown in FIG. 7B, items M1 to M6 that can be adjusted by the operator are displayed on the clock adjustment screen D4. In each item M1 to M6, for example, numerical values corresponding to “year”, “month”, “day”, “hour”, “minute”, and “second” are displayed. Further, when the clock adjustment screen D4 is displayed on the display monitor 331, “↑ ↓ selection”, “← → change”, “○ decision”, and “x stop” are displayed in the guide region R4. That is, the operator can select a desired one of the six settable items M1 to M6 by operating the “selection ↑” key 53 or the “selection ↓” key 54.

  The numerical value of the item selected by the operation of the “selection ↑” key 53 or the “selection ↓” key 54 by the operator can be changed by operating the “selection ←” key 55 or the “selection →” key 56. For example, each time the “selection ←” key 55 is operated, the numerical value displayed in the selected item is decreased by one, and every time the “selection →” key 56 is operated, the selected item is changed. The displayed value increases by one. As shown in FIG. 7B, when the item M2 indicating the value of “month” is selected, and the value of the item M2 is 2, the operator operates the “selection →” key 56 to display FIG. ), The numerical value of the item M2 is changed to 3. Also in the case shown in FIG. 7B, the item selected by the operator among the items M1 to M6 is displayed in black and white reversed. In this state, when the operator performs a determination operation using the “OK” key 51, the numerical value of the item M2 is changed to 3 and set.

  FIG. 8 shows how the screen displayed on the display monitor 331 transitions according to the operation of the display state switching instruction operation member 334 by the operator. FIG. 8A shows a case where the work screen D1 is displayed on the display monitor 331. FIG. At this time, when the operator performs a determination operation using the “OK” key 51, the display state switching instruction operation member 334 outputs an operation signal indicating that the “OK” key 51 has been operated to the controller 338. Then, the screen switching unit 335 switches the display state of the display monitor 331 from the work screen D1 to the menu screen D2 shown in FIG. 8B according to the input operation signal.

  When the “selection ↓” key 54 is operated by the operator while the menu screen D2 shown in FIG. 8B is displayed, the “selection ↓” key 54 is operated in the display state switching instruction operation member 334. An operation signal indicating this is output to the controller 338. Then, the screen switching unit 335 switches the menu screen D2 of the display monitor 331 to the menu screen D2 shown in FIG. 8C according to the input operation signal. In other words, the screen switching unit 335 causes the “machine information” item L2 to be displayed in black and white inversion.

  When the “selection ↓” key 54 is operated by the operator while the menu screen D2 shown in FIG. 8C is displayed, the “selection ↓” key 54 is operated in the display state switching instruction operation member 334. An operation signal indicating this is output to the controller 338. Then, the screen switching unit 335 switches the menu screen D2 of the display monitor 331 to the menu screen D2 shown in FIG. 8D in accordance with the input operation signal. That is, the screen switching unit 335 causes the “clock” item L3 to be displayed in black and white reversed.

  When the operator performs a cancel operation using the “Cancel ×” key 52 while the menu screen D2 shown in FIGS. 8B to 8D is displayed, the display state switching instruction operation member 334 displays “Cancel × The operation signal indicating that the key 52 has been operated is output to the controller 338. Then, the screen switching unit 335 switches the menu screen D2 of the display monitor 331 to the work screen D1 shown in FIG. 8A according to the input operation signal.

  When the menu screen D2 shown in FIG. 8D is displayed, that is, when the “clock” of the item L3 is selected, if the “determine ○” key 51 is operated by the operator, the display state switching instruction The operation member 334 outputs an operation signal indicating that the “OK” key 51 has been operated to the controller 338. Then, the screen switching unit 335 switches the display state of the display monitor 331 from the menu screen D2 to the clock setting screen D3 shown in FIG. 8E according to the input operation signal.

  When the “OK” key 51 is operated by the operator while the clock setting screen D3 shown in FIG. 8E is displayed, the “OK” key 51 is operated on the display state switching instruction operation member 334. An operation signal indicating this is output to the controller 338. Then, the screen switching unit 335 switches the display state of the display monitor 331 from the clock setting screen D3 to the clock adjustment screen D4 shown in FIG. 8F according to the input operation signal. Further, when the “stop x” key 52 is operated by the operator while the clock setting screen D3 is being displayed, the display state switching instruction operation member 334 sends an operation signal indicating that the “stop x” key 52 has been operated to the controller. To 338. Then, the screen switching unit 335 switches the clock setting screen D3 of the display monitor 331 to the menu screen D2 shown in FIG. 8D in accordance with the input operation signal.

  When the “selection ↓” key 54 is operated by the operator while the clock adjustment screen D4 shown in FIG. 8F is displayed, the “selection ↓” key 54 is operated in the display state switching instruction operation member 334. An operation signal indicating this is output to the controller 338. Then, the screen switching unit 335 switches the display on the display monitor 331 from the clock adjustment screen D4 shown in FIG. 8 (f) to the clock adjustment screen D4 shown in FIG. 8 (g) in accordance with the input operation signal. That is, the screen switching unit 335 displays the item M2 in black and white reversed.

  When the “selection →” key 56 is operated by the operator while the clock adjustment screen D4 of FIG. 8G is displayed, the “selection →” key 56 is operated in the display state switching instruction operation member 334. An operation signal indicating this is output to the controller 338. Then, the screen switching unit 335 switches the display on the display monitor 331 to the clock adjustment screen D4 shown in FIG. 8H in accordance with the input operation signal. That is, the screen switching unit 335 changes the numerical value displayed by the item M2 from “2” to “3” and displays it.

  As shown in FIG. 8H, when the “OK” key 51 is operated by the operator after the numerical value of the item M2 is changed, the “OK” key 51 is displayed on the display state switching instruction operation member 334. An operation signal indicating that the operation has been performed is output to the controller 338. Then, the screen switching unit 335 switches the display monitor 331 from the clock adjustment screen D4 in FIG. 8 (h) to the clock setting screen D3 shown in FIG. 8 (i) according to the input operation signal. In the clock setting screen D3 shown in FIG. 8 (i), the time when the numerical value changed in the clock adjustment screen D4 is reflected is displayed as the current time.

  When the “Cancel ×” key 52 is operated by the operator while the clock adjustment screen D4 shown in FIGS. 8F to 8H is displayed, the display state switching instruction operation member 334 displays the “Cancel ×” key. An operation signal indicating that 52 has been operated is output to the controller 338. Then, the screen switching unit 335 switches the display state of the display monitor 331 to the clock setting screen D3 shown in FIG. 8E according to the input operation signal.

-When a failure occurs-
Next, a case where a failure has occurred in any button of the display switching button group 50 will be described. As described above, when one button of the display state switching instruction operation member 334 fails, the display control device 33 according to the present embodiment substitutes other buttons so that an operation performed with one button can be performed. It is configured to be able to. For example, when the “OK” key 51 breaks down, an operation similar to the operation by the “OK” key 51 is performed by operating the “SELECT ↑” key 53 and the “SELECT ↓” key 54. . That is, the operation of the “selection ↑” key 53 and the “selection ↓” key 54 is the content of the substitute setting for the operation of the “OK” key 51. Hereinafter, as a process when a failure occurs, a substitute setting process, a display state switching process, and a failure occurrence date confirmation process will be described in detail.

(A) Substitution setting process When the substitute setting screen switching instruction operation member 333 is operated by the operator, the controller 338 confirms the failure occurrence date as will be described later. In the following cases (1) to (3), the screen switching unit 335 functionally provided in the controller 338 causes the display monitor 331 to display the substitute setting screen. If none of (1) to (3) applies, the screen switching unit 335 does not display the substitute setting screen on the display monitor 331. The substitute setting screen is a screen for the operator to select and determine the contents of the substitute setting.
(1) When no failure has occurred before.
(2) A failure that occurred before has been repaired.
(3) A case where a failure has occurred before and N days (for example, 7 days) have not passed for more than N days.

  FIG. 9A shows an example of the substitute setting screen D5. On the substitute setting screen D5, a switching instruction input value N1, a substitute input value N2, and a cursor C are displayed. The switching instruction input value N1 is each instruction given by the display state switching instruction operating member 334, that is, the “OK” key 51, the “Cancel ×” key 52, the “Selection ↑” key 53, the “Selection ↓” key 54, “ The operation content corresponding to the “selection” key 55 and the “selection” key 56 is shown. The substitute input value N2 indicates which button of the display switching button group 50 of the display state switching instruction operation member 334 is used to perform the operation content indicated by the switching instruction input value N1. In the substitute setting screen D5 shown in FIG. 9A, the operation of the “OK” key 51 is set to be substituted by the double pressing operation of the “selection ↑” key 53 and the “selection ↓” key 54. Is shown. The operator uses the set value input operation member 332 to perform an operation for the substitute setting on the substitute setting screen D5. A cursor C indicates a substitute input value N2 selected in accordance with the operation of the set value input unit 332 by the operator.

  Hereinafter, operations for substitution setting by an operator will be described. The operator operates the “↑” key 41 or the “↓” key 42 on the substitute setting screen D5 to select the substitute input value N2 corresponding to the switching instruction input value N1 for performing substitute input. In the example shown in FIG. 9A, it is indicated that the substitute input value N2 corresponding to the “decide” switching instruction input value N1 is selected by the operator. After the substitute input value N2 is selected, after the operator operates the “◯” key 45, the operator further operates the set value input operation member 332, whereby the substitute input value N2 can be input. That is, the operator selects “↑” key 41, “↓” key 42, “←” key 43, “→” key 44, and “ By operating the “O” key 45, a desired substitute operation can be set to the substitute input value N2. FIG. 9A shows a case where the operator double-presses the “↑” key 41 and the “↓” key 42.

  After the setting value input operation member 332 is operated by the operator as described above, when the input value determination operation is performed by the “complete” key 46 and an operation signal is output from the setting input operation member 332, the controller In step 338, the substitute input value N2 is determined as the substitute-set content. That is, the controller 338 writes the substitute setting content in the substitution setting table TB shown in FIG. 10 and stores it in the storage unit 337. In the substitution setting table TB, the switching instruction input value and the alternative input value are written. The switching instruction input value indicates the display switching button group 50 of the display state switching instruction operation member 334 that is substituted by another button, that is, the display switching button group 50 that is currently malfunctioning. The substitute input value is set on the display switch button group 50 used in place of the display switch button group 50 of the display state switch instruction operating member 334 written in the switch instruction input value, that is, on the substitute setting screen D5. A display switching button group 50 is shown. The example of the substitute setting table TB shown in FIG. 10 indicates that the operation of the “OK” key 51 is substituted by the double pressing operation of the “selection ↑” key 53 and the “selection ↓” key 54. Furthermore, the controller 338 turns on a substitute setting flag indicating that the substitute setting has been validated, and stores it in the storage unit 337.

(B) Display state switching process The display state switching process of the display monitor 331 by the display control apparatus 33 when the substitute setting process is performed will be described. When the substitute setting process is performed, when the operator operates the display state switching instruction operation member 334 according to the operation content set by the substitute setting process, the display control device 33 performs the display state switching process of the display monitor 331 described above. Do. That is, when the substitute setting is performed on the substitute setting screen D5 as shown in FIG. 9A, when the screen transition described with reference to FIG. Instead of the operation, the “selection ↑” key 53 and the “selection ↓” key 54 may be double-pressed. In this case, when an operation signal is output in response to the operation of the display state switching instruction operation member 334 by the operator, the input value determination unit 336 determines whether the substitute setting flag stored in the storage unit 337 is set to ON. judge. When the substitute setting flag is set to ON, the input value determination unit 336 determines whether the input operation signal corresponds to the input value written in the substitute setting table TB shown in FIG.

  For example, when the operation signal output from the display state switching instruction operation member 334 corresponds to the operation of the “selection →” key 56, the input value determination unit 336 refers to the switching input value written in the substitute setting table TB. To do. Since “selection →” is not written in the substitute input value in the substitute setting table TB shown in FIG. 10, the controller 338 performs processing according to the input operation signal, that is, according to the operation of the “selection →” key 56. Process.

  Even when the operation signal output from the display state switching instruction operation member 334 corresponds to the double pressing operation of the “selection ↑” key 53 and the “selection ↓” key 57, the input value determination unit 336 similarly performs The switching input value written in the substitute setting table TB is referred to. In the substitute setting table TB shown in FIG. 10, double-pressing operation of the “selection ↑” key 53 and the “selection ↓” key 57 as substitute input values, that is, the same input value as the input operation signal is stored in the substitute setting table TB. Has been written. In this case, the controller 338 performs processing according to the switching instruction input value written corresponding to the alternative input value, that is, the operation of the “OK” key 51. As a result, even if the “OK” key 51 is out of order, the operator double-presses the “selection ↑” key 53 and the “selection ↓” key 57 as shown in FIG. It is possible to switch the screen display.

(C) Failure occurrence date confirmation processing The failure occurrence date confirmation processing that is performed before the controller 338 displays the substitution setting screen D5 when the substitute setting screen switching instruction operation member 333 is operated by the operator will be described. The storage unit 337 stores the failure occurrence date as described above. This failure occurrence date is set and stored as a default value when the excavator 10 is shipped. When the above-described substitute setting process is performed, the controller 338 sets the failure occurrence date from the default value to the date when the substitute setting process is performed, and causes the storage unit 337 to store the failure occurrence date. When the failure is repaired after the failure occurs, the controller 338 executes a repair status confirmation process described later, and then sets the failure occurrence date to a default value again and stores it in the storage unit 337.

  As described above, when an operation signal is output in accordance with the operation of the substitute setting screen switching instruction operation member 333 by the operator, the controller 338 refers to the failure occurrence date stored in the storage unit 337. If the referenced failure occurrence date is a default value, that is, if a failure has not occurred before, or if a failure that occurred previously is repaired, the screen switching unit 335 sets the display monitor 331 as a substitute. The screen D5 is displayed. When the failure occurrence date stored in the storage unit 337 is not the default value, the display switching unit 335 causes the display monitor 331 to display a repair status confirmation screen for performing the repair status confirmation process. When the controller 338 determines that the display state switching instruction operation member 334 is out of order and N days or more have not elapsed since the failure occurred as a result of the repair status confirmation processing, the screen switching unit 335 Then, the substitute setting screen D5 is displayed on the display monitor 331.

  FIG. 11 shows an example of the repair status confirmation screen D6 for performing the repair status confirmation processing. The repair status confirmation screen D6 is a screen for setting the repair status of the display state switching instruction operation member 334. As shown in FIG. 11, “repair incomplete” O1 and “repair completed” O2 are displayed on the repair status confirmation screen D6 as items indicating the repair status. When the restoration of the display state switching instruction operation member 334 has been completed, the operator operates the “←” key 43 or the “→” key 44 of the setting input operation member 32 to select the “repair completed” item O2. Then, the input value determination operation is performed by the “complete” key 46. When an operation signal is output from the setting input operation member 332 according to the above operation by the operator, the controller 338 sets completion of failure repair of the display state switching instruction operation member 334. That is, the controller 338 sets the substitute setting flag to OFF, sets the failure occurrence date to a default value, clears (cancels) the substitute setting table TB, and stores each in the storage unit 337.

When the restoration of the display state switching instruction operation member 334 has not been completed, the operator operates the “←” key 43 or the “→” key 44 of the setting input unit 332 to select the item “O1 incomplete”. Then, the input value determination operation is performed by the “complete” key 46. When an operation signal is output from the setting input operation member 332 according to the above operation by the operator, the controller 338 determines that the display state switching instruction operation member 334 is in failure, and the failure stored in the storage unit 337 is detected. Refer to the date of occurrence. As described above, the controller 338 determines whether or not N days or more have elapsed since the failure occurrence date. When N days or more have not elapsed since the failure occurrence date, the display switching unit 335 displays the substitute setting screen D5 on the display monitor 331 as described above. When N days or more have elapsed from the failure occurrence date, the display switching unit 335 does not display the substitute setting screen D5 on the display monitor 331. In other words, it is not possible to perform substitute setting for operating one failed button in the display switching button group 50 of the display state switching instruction operation member 334 using another button.

  The processing of the display control device 33 according to the embodiment will be described using the flowcharts shown in FIGS. Each process in FIGS. 12 to 15 is performed by executing a program in the controller 338. Programs for performing the processes in FIGS. 12 to 15 are stored in a memory (not shown). When the power of the display control device 33 is turned on, the program is started and executed by the controller 338.

  In step S101 of FIG. 12, the controller 338 sets the substitute setting flag to OFF, that is, invalidates the substitute setting, stores it in the storage unit 337, and proceeds to step S102. In step S102, the controller 338 stores a value “0xFF” indicating that switching to the substitute setting screen D5 is not performed as the previous screen number in the storage unit 337, and proceeds to step S103. In step S103, the controller 338 performs substitution setting processing described later, and proceeds to step S104. In step S104, the screen switching unit 335 of the controller 338 performs a display state switching process described later, and returns to step S103.

Next, the substitute setting process in step S103 will be described with reference to the flowchart of FIG.
In step S201 in FIG. 13, the input value determination unit 335 determines whether or not an operation for switching to the substitute setting screen D5 has been performed. When the switching operation to the substitute setting screen D5 is performed, that is, when the operation signal from the substitute setting screen switching instruction operation member 333 is input, the input value determination unit 335 makes a positive determination in step S201 and proceeds to step S202. . When the switching operation to the substitute setting screen D5 is not performed and the operation signal from the substitute setting screen switching instruction operation member 333 is not input, the input value determining unit 335 makes a negative determination in step S201, and step S104 in FIG. Return to.

  In step S202, the controller 338 sets the screen number currently displayed on the display monitor 331 (that is, the display application number) as the previous screen number, and proceeds to step S203. In step S203, the controller 338 determines whether or not the failure occurrence date stored in the storage unit 337 is a default value. When the failure occurrence date is not the default value, the controller 338 makes a negative determination in step S203, performs a repair status confirmation process described later, and returns to step S104 in FIG. If the failure date is a default value, the controller 338 makes a positive determination in step S203 and proceeds to step S204.

  In step S204, the controller 338 changes the failure date to the current date and stores it in the storage unit 337, and proceeds to step S205. In step S205, the controller 338 sets the substitute setting flag to ON, stores it in the storage unit 337, and proceeds to step S206. In step S206, the screen switching unit 335 causes the display monitor 331 to display the substitute setting screen D5. Then, the controller 338 writes the content corresponding to the substitute setting value set on the substitute setting screen D5 in the substitute setting table TB, stores it in the storage unit 337, and returns to step S104 in FIG.

The repair status confirmation process in step S207 will be described with reference to the flowchart of FIG.
In step S301, the screen switching unit 335 causes the display monitor 331 to display the repair status confirmation screen D6. Then, the controller 338 sets the failure repair status set on the repair status confirmation screen D6, that is, failure repair completion or failure repair incomplete, and proceeds to step S302. In step S302, the controller 338 determines whether or not the repair of the failure has been completed. If the repair of the fault is completed, that is, if the fault repair completion is set in step S301, the controller 338 makes a positive determination in step S302 and proceeds to step S303. If failure repair is not completed, that is, if failure repair incomplete is set in step S301, the controller 338 makes a negative determination in step S302 and proceeds to step S306.

  In step S303, the controller 338 sets the substitute setting flag to OFF, stores it in the storage unit 337, and proceeds to step S304. In step S304, the controller 338 sets the failure occurrence date to a default value, stores it in the storage unit 337, and proceeds to step S305. In step S305, the controller 338 clears the substitute setting table TB and returns to step S104 in FIG.

  If the determination in step S302 is negative, in step S306, the controller 338 determines whether N days or more have elapsed since the failure occurred. If the date has passed N days or more from the failure occurrence date stored in the storage unit 337, the controller 338 makes a positive determination in step S306 and returns to step S104 in FIG. If N days or more have not elapsed since the failure occurrence date, the controller 338 makes a negative determination in step S306 and proceeds to step S307. Each process of step S307 (substitution setting flag ON) and step S308 (writing to the substitution setting table TB) is the same as step S205 (substitution setting flag ON) and step S206 (writing to the substitution setting table TB) of FIG. . When the process of step S308 ends, the process returns to step S104 of FIG.

The display state switching process in step S104 will be described with reference to the flowchart of FIG.
In step S401, the controller 338 determines whether or not “0xFF” indicating that the previous screen number is not switched to the substitute setting screen is set. If the previous screen number is set to “0xFF”, the controller 338 makes a positive determination in step S401 and proceeds to step S402. If the previous screen number is not set to “0xFF”, the controller 338 makes a negative determination in step S401 and proceeds to step S407. In step S407, the screen switching unit 335 refers to the previous screen number and causes the display monitor 331 to display a screen corresponding to the previous screen. In step S408, the controller 338 sets “0xFF” as the previous screen number. Then, the process returns to step S103 in FIG.

  In step S402, it is determined whether or not the operator has operated the display state switching instruction operation member 334. When the operation signal from the display state switching instruction operation member 334 is not input, the controller 338 makes a negative determination in step S402 and returns to step S103 in FIG. When an operation signal is input from the display state switching instruction operation member 334, the controller 338 makes a positive determination in step S402 and proceeds to step S403.

  In step S403, it is determined whether or not the substitute setting flag is set to ON. If the substitute setting flag is set to ON, the controller 338 makes a positive determination in step S403 and proceeds to step S404. If the substitute setting flag is set to OFF, the controller 338 makes a negative determination in step S403, skips steps S404 and S405, and proceeds to step S406.

  In step S404, the input value determining unit 336 determines whether or not the input value corresponding to the operation signal input in step S402 matches the substitute input value of the substitute setting table TB stored in the storage unit 337. If the input value corresponding to the operation signal matches the substitute input value in the substitute setting table TB, the input value determining unit 336 makes a positive determination in step S404 and proceeds to step S405. If the input value corresponding to the operation signal does not match the substitute input value in the substitute setting table TB, the input value determining unit 336 makes a negative determination in step S404, skips step S405, and proceeds to step S406.

  In step S405, the input value determination unit 336 refers to the substitute setting table TB, determines the switching instruction input value corresponding to the input value corresponding to the operation signal as an input instruction by the operator, and proceeds to step S406. In step S406, the input value determination unit 336 determines an input instruction, and the screen switching unit 335 causes the display monitor 331 to display a screen corresponding to the input instruction determined by the input value determination unit 336, and the step of FIG. Return to S103.

According to the display control apparatus according to the embodiment described above, the following functions and effects can be obtained.
(1) The screen switching unit 335 controls display contents of a screen including various information. The display state switching instruction operation member 334 includes a display switching button group 50 including a plurality of keys 51 to 56 that receive a plurality of types of operation inputs on various screens. The set value input operation member 332 receives an operation input for performing substitute setting for substituting the operation instruction of one key among the plurality of keys 51 to 56 with another key. When the operation input for starting the substitute setting is received by the substitute setting screen switching instruction operation member 333, the controller 338 displays the substitute setting screen D5, and according to the operation input received by the set value input operation member 332 Determine the contents of the substitute setting. When the operation input received by the display state switching instruction operation member 334 matches the content of the substitute setting set by the controller 338, the screen switching unit 335 displays the screen according to the content of the substitute setting. To control. Therefore, it is possible to perform an operation of switching the display of the screen by supplementing the operation of the button 50 in which the failure has occurred using another button in the display switching button group 50 in which no failure has occurred. As a result, even when the display switching button group 50 for performing various operations for the display screen of the display monitor 331 cannot be immediately repaired or when the excavator 10 cannot be stopped, the excavator 10 is not stopped. Work can be continued.

(2) When the number of days from when the content of the substitute setting is set by the controller 338 until the operation input by the substitute setting screen switching instruction operation member 333 has been received is N days or more, the screen switching unit 335 The substitution setting screen D5 is not displayed. In other words, since the contents of the substitute setting are invalid, it is possible to prevent the excavator 10 from being used for a long period of time while the display state switching instruction operation member 334 remains in a broken state.

The display control apparatus according to the embodiment described above can be modified as follows.
(1) Instead of setting the substitute setting contents in accordance with the operation of the substitute value input operation member 332 by the operator, the contents may be selected from a plurality of substitute setting contents. In this case, the contents of a plurality of substitute settings are registered in advance for each switching instruction input value N1. As shown in FIG. 9B, the operator operates the “↑” key 41 or the “↓” key 42 to select the substitute input value N2 corresponding to the “decide” switching instruction input value N1. Then, the contents of a plurality of registered substitute settings are displayed as a pull-down menu. The operator selects the desired substitute setting content from the displayed pull-down menu by operating the “←” key 43 and the “→” key 445. FIG. 9B also shows a case where the double selection operation of “selection ↑” and “selection ↓” is selected as the substitute setting content by the operator. When an input value determination operation is performed with the “complete” key 46, the controller 338 sets the selected substitute input value N2 as the substitute-set content.

(2) The set value input operation member 332 and the display state switching instruction operation member 334 may be configured by a touch panel. That is, the operator performs an operation similar to the operation input of the set value input button group 40 of the set value input operation member 332 and the operation input of the display switching button group 50 of the display state switching instruction operation member 334 by touching the touch panel. Input can be made.

  In addition, the present invention is not limited to the above-described embodiment as long as the characteristics of the present invention are not impaired, and other forms conceivable within the scope of the technical idea of the present invention are also within the scope of the present invention. included. The embodiments and modifications used in the description may be configured by appropriately combining them.

10 hydraulic excavator, 33 display control device,
331 display monitor, 332 set value input operation member,
333 substitute setting screen switching instruction operation member, 334 display state switching instruction operation member,
335 screen switching unit, 336 input value determination unit,
337 storage unit, 338 controller

Claims (4)

Display control means for controlling the display content of the screen including various information;
A first operation member group each having a plurality of operation members for receiving a plurality of types of first operation inputs with respect to the screen;
A second operation member group for receiving a second operation input for performing a substitute setting for substituting the first operation input by one of the plurality of operation members with another operation member;
A third operation member for receiving a third operation input for starting the substitute setting;
A setting for displaying a substitute setting screen for performing the substitute setting according to the third operation input, and determining the content of the substitute setting according to the second operation input performed on the substitute setting screen. Means, and
When the first operation input received by the first operation member group matches the contents of the substitute setting determined by the setting means, the display control means responds to the contents of the substitute setting. A display control apparatus for a construction machine, wherein the display of the screen is controlled. The display control apparatus for a construction machine according to claim 1,
When the number of days from when the content of the substitute setting is determined by the setting means until the operation input by the third operation member is received has passed a predetermined day, the display control means A display control device for a construction machine, wherein the setting screen is not displayed. The display control device for a construction machine according to claim 1 or 2,
A display control device for a construction machine, further comprising: a release unit that releases the contents of the substitute setting set by the setting unit. In the display control apparatus of the construction machine as described in any one of Claims 1 thru | or 3,
The display control device for a construction machine, wherein the setting means determines one substitute setting content among a plurality of types of substitute setting contents according to the second operation input.

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